Computer-Based Mathematical Model for Performance Prediction of Corroded Beams Repaired with Fiber Reinforced Polymers
Publication: Journal of Composites for Construction
Volume 9, Issue 3
Abstract
A new mathematical model for predicting the inelastic flexural response of corroded reinforced concrete (RC) beams repaired with fiber reinforced polymer (FRP) laminates is presented. The model accounts for the effect of the change in the bond strength at the steel-to-concrete interface due to corrosion and/or FRP wrapping on the beam load–deflection response. The effects of FRP strengthening and the reduction in the steel reinforcement area due to corrosion on the beam strength are predicted by the model. A computer program was coded to carry out the modeling procedure and the model’s predictions were compared with the results of an experimental study undertaken to investigate the model’s reliability. A comparison of the predicted and the experimental results showed that the model accurately predicted the load–deflection relationships for corroded RC beams repaired with FRP laminates.
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Acknowledgments
This work is supported by research funding from the Network of Centers of Excellence ISIS Canada on Intelligent Sensing for Innovative Structures, the Natural Sciences and Engineering Research Council (NSERC), and Sika Canada for the donation of the CFRP composites. Their contributions are greatly appreciated. The writers wish to thank the Civil Engineering technicians at the University of Waterloo for their help throughout the testing.
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Information & Authors
Information
Published In
Journal of Composites for Construction
Volume 9 • Issue 3 • June 2005
Pages: 227 - 235
Copyright
© 2005 ASCE.
History
Received: Mar 26, 2004
Accepted: Jul 13, 2004
Published online: Jun 1, 2005
Published in print: Jun 2005
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